Paleomagnetic Data from NGDC / WDC Boulder

The study of magnetism is one of the oldest of the geophysical sciences.
It is unique among the sciences in that ancient records of the geomagnetic
field are preserved in rocks and changes in the field can be traced through
time. To assist scientist studying the Earth's ancient magnetization, the
National Geophysical Data Center (NGDC) is making available the following
data of paleopole positions and paleomagnetic directions.

The Archeomagnetic directional database, Paleointensity database, and Secular Variation from
Lake Sediments database (numbers 2, 4 and 6 above) have no new information included from the
previous versions (3.4 May 1999). All other databases are complete up to December 1999 and in
some cases include data from early in 2000.

Documentation

McElhinny and Lock (1996) give a description of the Access versions of the GPMDB, TRANS
and SECVR. Details of PSVRL are given in McElhinny and McFadden (1997). Perrin, Schnepp and
Shcherbakov (1998) give a brief description of PINT and McElhinny, Opdyke and Pisarevsky (1998)
give a description of MAGST. ARCHEO is a new archeomagnetic directional database compiled by
Don Tarling at the University of Southampton, U.K. It is not yet complete but was released in 1999.